This recipe from Audrey “Libation Goddess” Saunders originally called for 8-year añejo rum, but also we’ve tried it with a fancy spiced rum and a white Flor de Caña, and every time we’ve gotten wonderful results. Of all of Saunders’ many fine mojito riffs, this is one we always keep coming back to.
Every recipe we’ve found for an Old Cuban calls for Champagne, but we don’t see it as a strict requirement. We’ve had it with prosecco and cava and gas-station sparkling-who-knows-what, and all but the latter were delightful. We’d err on the side of a dryer sparkling wine – something too sweet, like a sparkling moscato, would overwhelm the other flavors of the drink.